Time filter

Source Type

Harristown, IL, United States

Cong B.,DuPont Pioneer | Maxwell C.,DuPont Pioneer | Luck S.,DuPont Pioneer | Vespestad D.,Eurofins | And 3 more authors.
Journal of Agricultural and Food Chemistry | Year: 2015

This study was designed to assess natural variation in composition and metabolites in 50 genetically diverse non genetically modified maize hybrids grown at six locations in North America. Results showed that levels of compositional components in maize forage were affected by environment more than genotype. Crude protein, all amino acids except lysine, manganese, and β-carotene in maize grain were affected by environment more than genotype; however, most proximates and fibers, all fatty acids, lysine, most minerals, vitamins, and secondary metabolites in maize grain were affected by genotype more than environment. A strong interaction between genotype and environment was seen for some analytes. The results could be used as reference values for future nutrient composition studies of genetically modified crops and to expand conventional compositional data sets. These results may be further used as a genetic basis for improvement of the nutritional value of maize grain by molecular breeding and biotechnology approaches. © 2015 American Chemical Society.

Claussen F.A.,EPL Bio Analytical Services | Taylor M.L.,Monsanto Corporation | Breeze M.L.,Monsanto Corporation | Liu K.,Monsanto Corporation
Journal of Agricultural and Food Chemistry | Year: 2015

Plant oils, including canola oil, are considered to be major sources of vitamin K as the second most substantial contributor of vitamin K to the human diet. Green leafy vegetables are the largest source of vitamin K. However, the effects of environment and germplasm on vitamin K levels in harvested canola seed have not been extensively investigated. To better understand these relationships, harvested canola seed from a range of diverse cultivars grown in different geographical locations in North and South America was assessed for levels of vitamin K. The analytical method developed to perform this measurement was based on C30 reversed-phase HPLC that could distinguish the biologically active trans-vitamin K1 from the inactive cis-isomer. Results demonstrated that for the majority of the canola cultivars evaluated, those cultivated in the North American sites had higher average vitamin K1 levels than those cultivated in the South American sites. Not all of the cultivars exhibited differences in response to the environment, suggesting that individual cultivar genetics also played a role in the variability of vitamin K1 levels observed in canola seed. Results from this study suggest that cultivar and environmental effects influence vitamin K1 levels in canola seed and provide a context to assess compositional variability of new cultivars. © 2015 American Chemical Society.

Berman K.H.,Monsanto Corporation | Harrigan G.G.,Monsanto Corporation | Riordan S.G.,Monsanto Corporation | Nemeth M.A.,Monsanto Corporation | And 5 more authors.
Journal of Agricultural and Food Chemistry | Year: 2010

Brazil has become one of the largest soybean producers. Two Monsanto Co. biotechnology-derived soybean products are designed to offer benefits in weed and pest management. These are second-generation glyphosate-tolerant soybean, MON 89788, and insect-protected soybean, MON 87701. The second-generation glyphosate-tolerant soybean product, MON 89788, contains the 5-enolpyruvylshikimate-3-phosphate synthase gene derived from Agrobacterium sp. strain CP4 (cp4 epsps). MON 87701 contains the cry1Ac gene and expression of the Cry1Ac protein providing protection from feeding damage caused by certain lepidopteran insect pests. The purpose of this assessment was to determine whether the compositions of seed and forage of MON 89788 and MON 87701 are comparable to those of conventional soybean grown in two geographically and climatically distinct regions in multiple replicated sites in Brazil during the 2007-2008 growing season. Overall, results demonstrated that the seed and forage of MON 89788 and MON 87701 are compositionally equivalent to those of conventional soybean. Strikingly, the results also showed that differences in mean component values of forage and seed from the two controls grown in the different geographical regions were generally greater than that observed in test and control comparisons. Hierarchical cluster analysis (HCA) and principal component analysis (PCA) of compositional data generated on MON 89788, MON 87701, and their respective region-specific controls provide a graphical illustration of how natural variation contributes more than biotechnology-driven genetic modification to compositional variability in soybean. Levels of isoflavones and fatty acids were particularly variable. © 2010 American Chemical Society.

Discover hidden collaborations